var radius = 160;//3D 球的半径   词分布的半径
var dtr = Math.PI / 160;// 3Dqiu的半径
var d = 320; // 3D球的深度
var mcList = [];
var active = false;		// 默认让文字旋转
var lasta = 1;		// 旋转的角度
var lastb = 1;	// 旋转的角度
var distr = true;
var tspeed = 2;//文字移动速度
var size = 200;	// 词的大小
var mouseX = 0;
var mouseY = 0;
var howElliptical = 1;
var aA = null;
var oDiv = null;

//实现动画和交互的效果
function update() {
	var a;
	var b;
	if (active) {
		a = (-Math.min(Math.max(-mouseY, -size), size) / radius) * tspeed;
		b = (Math.min(Math.max(-mouseX, -size), size) / radius) * tspeed;
	}
	else {
		a = lasta * 0.98;
		b = lastb * 0.98;
	}
	lasta = a;
	lastb = b;
	if (Math.abs(a) <= 0.01 && Math.abs(b) <= 0.01) {
		return;
	}
	var c = 0;
	sineCosine(a, b, c);
	for (var j = 0; j < mcList.length; j++) {
		var rx1 = mcList[j].cx;
		var ry1 = mcList[j].cy * ca + mcList[j].cz * (-sa);
		var rz1 = mcList[j].cy * sa + mcList[j].cz * ca;
		var rx2 = rx1 * cb + rz1 * sb;
		var ry2 = ry1;
		var rz2 = rx1 * (-sb) + rz1 * cb;
		var rx3 = rx2 * cc + ry2 * (-sc);
		var ry3 = rx2 * sc + ry2 * cc;
		var rz3 = rz2;
		mcList[j].cx = rx3;
		mcList[j].cy = ry3;
		mcList[j].cz = rz3;
		per = d / (d + rz3);
		mcList[j].x = (howElliptical * rx3 * per) - (howElliptical * 2);
		mcList[j].y = ry3 * per;
		mcList[j].scale = per;
		mcList[j].alpha = per;
		mcList[j].alpha = (mcList[j].alpha - 0.6) * (10 / 6);
	}
	doPosition();
	depthSort();
}
function depthSort() {
	var i = 0;
	var aTmp = [];

	for (i = 0; i < aA.length; i++) {
		aTmp.push(aA[i]);
	}
	aTmp.sort
		(
			function (vItem1, vItem2) {
				if (vItem1.cz > vItem2.cz) {
					return -1;
				}
				else if (vItem1.cz < vItem2.cz) {
					return 1;
				}
				else {
					return 0;
				}
			}
		);
	for (i = 0; i < aTmp.length; i++) {
		aTmp[i].style.zIndex = i;
	}
}
function positionAll() {
	var phi = 0;
	var theta = 0;
	var max = mcList.length;
	var i = 0;
	var aTmp = [];
	var oFragment = document.createDocumentFragment();
	for (i = 0; i < aA.length; i++) {
		aTmp.push(aA[i]);
	}
	aTmp.sort
		(
			function () {
				return Math.random() < 0.5 ? 1 : -1;
			}
		);

	for (i = 0; i < aTmp.length; i++) {
		oFragment.appendChild(aTmp[i]);
	}
	oDiv.appendChild(oFragment);
	for (var i = 1; i < max + 1; i++) {
		if (distr) {
			phi = Math.acos(-1 + (2 * i - 1) / max);
			theta = Math.sqrt(max * Math.PI) * phi;
		}
		else {
			phi = Math.random() * (Math.PI);
			theta = Math.random() * (2 * Math.PI);
		}
		mcList[i - 1].cx = radius * Math.cos(theta) * Math.sin(phi);
		mcList[i - 1].cy = radius * Math.sin(theta) * Math.sin(phi);
		mcList[i - 1].cz = radius * Math.cos(phi);

		aA[i - 1].style.left = mcList[i - 1].cx + oDiv.offsetWidth / 2 - mcList[i - 1].offsetWidth / 2 + 'px';
		aA[i - 1].style.top = mcList[i - 1].cy + oDiv.offsetHeight / 2 - mcList[i - 1].offsetHeight / 2 + 'px';
	}
}
function doPosition() {
	var l = oDiv.offsetWidth / 2;
	var t = oDiv.offsetHeight / 2;
	for (var i = 0; i < mcList.length; i++) {
		aA[i].style.left = mcList[i].cx + l - mcList[i].offsetWidth / 2 + 'px';
		aA[i].style.top = mcList[i].cy + t - mcList[i].offsetHeight / 2 + 'px';
		//aA[i].style.fontSize=Math.ceil(12*mcList[i].scale/2)+8+'px';
		aA[i].style.filter = "alpha(opacity=" + 100 * mcList[i].alpha + ")";
		aA[i].style.opacity = mcList[i].alpha;
	}
}
function sineCosine(a, b, c) {
	sa = Math.sin(a * dtr);
	ca = Math.cos(a * dtr);
	sb = Math.sin(b * dtr);
	cb = Math.cos(b * dtr);
	sc = Math.sin(c * dtr);
	cc = Math.cos(c * dtr);
}
$(document).ready(function () {
	var i = 0;
	var oTag = null;
	$.ajax({
        url: "/data_wordcloud",
        method: "GET",
        dataType: "json",
        success: function(response) {
            var data_test = response;//------------------测试接收到后端的数据
			setTimeout(function (){
				var items = [];
				var data=data_test;//-------------------实际词云图中的数据
				var min = Infinity;
				var max = -Infinity;
				function getRandomColor() {
					// 生成随机的RGB颜色值
					var r = Math.floor(Math.random() * 256); // 0-255之间的红色分量
					var g = Math.floor(Math.random() * 256); // 0-255之间的绿色分量
					var b = Math.floor(Math.random() * 256); // 0-255之间的蓝色分量
				
					// 将RGB值转换为CSS颜色格式（例如：rgb(100, 149, 237)）
					var color = "rgb(" + r + ", " + g + ", " + b + ")";
					
					return color;
				};
				function getComplementaryColor(color) {
					// 提取RGB颜色分量
					var rgb = color.match(/\d+/g);
					var r = parseInt(rgb[0]);
					var g = parseInt(rgb[1]);
					var b = parseInt(rgb[2]);
				
					// 计算互补色的RGB颜色分量
					var compR = 255 - r;
					var compG = 255 - g;
					var compB = 255 - b;
				
					// 将互补色的RGB值转换为CSS颜色格式
					var complementaryColor = "rgb(" + compR + ", " + compG + ", " + compB + ")";
					
					return complementaryColor;
				};
				data.forEach(function (item) {
					var value = item.value;
					min = Math.min(min, value);
					max = Math.max(max, value);
				});
				function mapRange(value, inputMin, inputMax, outputMin, outputMax) {
					var inputRange = inputMax - inputMin;
					var outputRange = outputMax - outputMin;
					return ((value - inputMin) * outputRange / inputRange) + outputMin;
				};		  
				data.forEach((item, index) => {
					var value = item.value;
					// 将数据的值映射到字体大小的范围
					var fontSize = mapRange(value, min, max, 10, 50);
					var color = getRandomColor();
					var complementaryColor = getComplementaryColor(color);
					items.push("<a href=# style='font-size:" + fontSize + "px; color:"+complementaryColor+"' data-currentIndex="+ index +">" + item.name + "</a>");
				})
				$("<div/>", {
					"id": "div1",
					style: "border:solid 2px black",	
					ALIGN: "center",
					html: items.join("")
				}).appendTo("#wordcloud-container");
				oDiv = document.getElementById('div1');
				aA = oDiv.getElementsByTagName('a');
				for (i = 0; i < aA.length; i++) {
					oTag = {};
					oTag.offsetWidth = aA[i].offsetWidth;
					oTag.offsetHeight = aA[i].offsetHeight;
					mcList.push(oTag);
				}
				sineCosine(0, 0, 0);
				positionAll();
				oDiv.onmouseover = function () {
					active = false;
				};
				oDiv.onmouseout = function () {
					active = true;
				};
				oDiv.onmousemove = function (ev) {
					var oEvent = window.event || ev;
					mouseX = oEvent.clientX - (oDiv.offsetLeft + oDiv.offsetWidth / 2);
					mouseY = oEvent.clientY - (oDiv.offsetTop + oDiv.offsetHeight / 2);
					mouseX /= 3;
					mouseY /= 3;
				};
				$('#div1').on('mouseenter', 'a', function (e) {
					//e.target.dataset.currentindex为index
					var word = data[e.target.dataset.currentindex];
					if (word) {
					var posX = e.clientX;
					var posY = e.clientY;
					var blackBox = $('<div/>', {
						class: 'black-box',
						text: word.name+'; freq: '+word.value
					}).css({
						left: posX + 'px',
						top: posY + 'px'
					});
					$('body').append(blackBox);
					} else {
					console.log('没有选中元素');
					}
				});
				$('#div1').on('mouseleave', 'a', function (e) {
					$('.black-box').remove();
				});
				setInterval(update, 30);
			},1000);
		}, error: function(error){
			console.log('Error',error);
		}
});
});